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Questions tagged [heapsizelimit]

The "Apex heap size too large" error occurs when too much data is being stored in memory during processing. Salesforce enforces an Apex Heap Size Limit of 6MB for synchronous transactions and 12MB for asynchronous transactions.

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How to test Batch Apex Heap Size Logic?

I have a batch class that implements Database.Stateful and it is filling a Map collection at the execute method alongside other things. This map is then utilized to send emails related to the records ...
selman's user avatar
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How to store large amount of data in a variable for a batch bypassing heap size exception

I am stuck with the following error: 'Batchable instance is too big: ProductDiscountsFormatterBatch' I have a junction object called Account_Product_Discounts__c with the information of, for each ...
Arnau LS's user avatar
2 votes
1 answer
449 views

How to reduce the heap Size while File Upload Aura

I have two components, Aura (Parent) --- Showing fields of cases and have create case button LWC (Child component) --- Using input tag, I am accepting csv and excel of maximum size 3.5 mb. After ...
Sukruti's user avatar
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1 vote
1 answer
488 views

Overcoming Salesforce API Heap Size Limitations in Document Retrieval - Need Advice

I am currently working on an integration project involving the Salesforce API. My project uses an Apex class to call a Quarkus service that interacts with a Document Management System (DMS) on Azure. ...
Kévin's user avatar
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1 answer
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encodingutilities.urlDecode hitting apex heap limit

While uploading a file, we send base64 and urlencoded blob(3 MB size) to Apex. In apex method, while using EncodingUtil.urlDecode method, we are hitting the heap size limit.Strange thing is, same code ...
Ramesh Kabadagi's user avatar
-2 votes
1 answer
239 views

Batch and Heap Size Limit to send all the information via csv to a specific emails

I am facing the same problem mentioned here (Batch Apex updating 300,000 records and returning errors in CSV and sending as Email), we need to delete 300000 records and send the CSV when the batch is ...
Esteban Segura Benavides's user avatar
2 votes
1 answer
1k views

How can I make multiple Http callouts in a row?

I need to build an apex class that will perform multiple callouts in a row to an external system and upsert some records. Right now I'm sending a POST method with a query in the body and getting an ...
Leonardo dos Santos Zamboni's user avatar
2 votes
0 answers
969 views

Size Limit on Sending data from Apex method to LWC JavaScript as return paramater

While sending the data to Apex , we have limit of around 3MB. But is there any size limit on sending the data from Apex method as return type to lwc JavaScript. Since 6MB will hit the heap size limit, ...
PK SF's user avatar
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1 vote
0 answers
316 views

File sync issue from one org to another org

We are having a kind of Connector Application (bidirectional) which sync data between the two salesforce org which are using two different platform apps. This connector application has a functionality ...
Mayur Birari's user avatar
6 votes
1 answer
1k views

Heap Size Optimization with commonly reused lists & variables

I recently joined a new, very large, very old org that is in need of optimization. Previously they had a tendency to create brand new, separate utility classes for each new method being called from ...
Morgan Marchese's user avatar
3 votes
2 answers
5k views

Upload and store 50 MB file from LWC

I have a LWC that, is retrieving the body of an attachment using apex. This is retrieved just as blob, because handling it in Apex would hit limits such as String too long os Heap Size exceeded, cause ...
Gabriel Serrano Salas's user avatar
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1 answer
2k views

How to check for the heap-size limit in batch apex?

I have a batch class that uses Database.Batchable<SObject>. How can I programmatically check for the heap-size limit in my batch? At the point where my check returns true and I'm either close ...
Bahman.A's user avatar
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Inserting 13k PDF Attachments each 192kb in Attachments object

I want to insert 13k PDF attachments in Salesforce. Each of the PDF is 192 kb. I have created a csv file with the name of the pdf and it's relative path on the local drive. I tested inserting 15 ...
GroundToCloud's user avatar
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0 answers
17 views

Heapsize: already exceed the limit but still running? [duplicate]

I am a bit confused on how can I handle heapsize to avoid getting a system exception. Based on the below scenario, if I run following script List<Attachment> attLST = new List<Attachment>()...
manza's user avatar
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9 votes
1 answer
1k views

How to relate to 6 MB heap size based on apex logs

I ran the below code to understand where this code breaks for heap size. Our use case is we have quote lines and we need to send it to external system for printing in documents. we can have 1000's of ...
RedDevil's user avatar
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System.LimitException: Apex heap size too large: 9810745

I have a JSON too large to be deserialized, and I'm getting the Exception System.LimitException: Apex heap size too large: 9810745. I used ProjectClass= (ProjectClass) JSON.deserialize(jsonRequest, ...
starboy The's user avatar
-1 votes
1 answer
772 views

Facing heap size issue when querying and processing apex logs in LWC component

We are creating a apex log table and users will select a log and we need to show the log body to them. While implementing this we are facing apex heap size issue. From the UI users will select the log ...
Ram's user avatar
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1 answer
748 views

What is the main reason for Heap size limit error?

I am trying to upload a document that is less than 1MB in size but it has 5000+ records with 6 columns of fields, I am getting below error Regex too complicatedError is in expression '{!ReadFile}' in ...
Frank's user avatar
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1 vote
1 answer
2k views

How to manage heap size in apex in sandbox

In a sandbox environment, I am writing an inbound email handler. I process the email's attachments asynchronously. I am getting the following error: System.LimitException: Apex heap size too large: ...
Doodool_Tala's user avatar
1 vote
2 answers
2k views

Hitting heap size limit while trying to convert attachment blob into base64 format

We have a requirement to process attachments to convert blob to base64 format. We are querying the attachment body (i.e. in blob format) and converting that into base64 format in apex class. Below is ...
SFDCUser's user avatar
3 votes
1 answer
381 views

Can we directly bind apex class property in LWC - for 25MB file upload with apex (heap size issue)?

I have lwc component like: import { LightningElement } from 'lwc'; import {saveAttachment} from '@salesforce/apex/DocumentController.saveAttachment' export default class FileUpload extends ...
AdityaHM's user avatar
  • 133
1 vote
2 answers
3k views

Unable to upload large files (not above 4MB) as attachment with apex class method from LWC. How to overcome this issue?

LWC method to convert selected file content to base64 String and call the apex method for uploading as related Notes and Attachment on a particular record myComponent.js const toBase64 = file => ...
AdityaHM's user avatar
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3 votes
1 answer
3k views

LWC: Maximum Blob Size From JS To APEX

I want to make a "custom file upload" LWC component as I am in need to build a specific design for an upload process. There are a few things I am not sure about. What would be the maximum size of a ...
Arthlete's user avatar
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1 vote
1 answer
2k views

Apex heap size too large - For a web service call

I know that this error is very common when the heap size is more than 12MB for an Asynchronous call, in my case, web service call out. I have referred this documentation: https://help.salesforce.com/...
Austin Evans's user avatar
2 votes
2 answers
139 views

Heap Space Question

I have a system.debug() that outputs the result of division of the currently used heap space by an integer. It always shows 0. What could be the root cause of this?
Neophyte__c's user avatar
6 votes
1 answer
240 views

Does sending a file to an external server fall under the heap size limit considerations?

I have to send SFDC files to a third party application, via custom apex. My only concern is, if my file size is 40 MB, will it fail due to the heap size limit? If yes, what is the workaround?
Shobhit Saxena's user avatar
3 votes
2 answers
4k views

About heap limits on triggers, garbage collection and transient variables

My friend and I are studying for platform developer I, and one of the questions we use for studying asks what are the best practices to avoid heap limit errors in triggers. The full question reads: ...
Mary Zep's user avatar
1 vote
2 answers
833 views

Heap size LIMIT

I'm trying to reduce the heap size limit while a program is running - I'm doing it by taking the data (a list for example) and after I'm using it, I'm assigning the instance to a new List : Example: ...
Salvation's user avatar
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1 vote
2 answers
491 views

Batch Apex updating 300,000 records and returning errors in CSV and sending as Email

I have to update 300,000 records using Apex Batch. I also have to send an email to the user with the CSV file containing errors from update operation.Assuming all 300,000 records give failure, if I ...
Liya George's user avatar
10 votes
3 answers
8k views

Ability of Apex Rest services to accept 50MB file, how is the heap size calculated in this case?

I have the below code where in we are accepting the blob data from the REST Apex class. We are inserting the document (blob) that we are receiving as a feed item. I was able to send file sizes upto 54 ...
Sam's user avatar
  • 4,383
0 votes
1 answer
2k views

Heap size limit error when making a callout to external endpoint

We are making a callout to external endpoint from Salesforce to get the attachments. when attachment size is more than 6 MB its throwing me Heap size limit error and we are running this callout from ...
vamshi krishna's user avatar
5 votes
2 answers
1k views

Is heap size a global limit that is shared by all executions within a transaction?

I know that the CPU limit is global and shared by all executions within a transaction and my understanding was that this was the only limit that was shared (global). After reviewing the documentation ...
bobbyt's user avatar
  • 497
5 votes
1 answer
676 views

How do I replicate an apex heap size exception in a test class?

We've received an Apex heap size too large error intermittently which we'd like to first capture and exit gracefully, and then to fix long term. Questions: Is it possible to catch a heap size ...
willard's user avatar
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1 vote
0 answers
56 views

heap size is too large while querying data from 6 objects and adding it to the single list

I am querying from six objects and adding it to single sobject list. each object is having around 4000 records and 40 fields in each object. so total records will 24000 and all those records i keeping ...
Silla Kartik's user avatar
4 votes
2 answers
1k views

HeapSize limit reached in an unexpected behaviour

i just made a test, to see how much data i can put in a string before i reach the the heapsize limit and i get an unexpected behaviour string csvFile = '"XXXXXXX","XXPX XXRXXXX","XXPX BP","XLXXXXR",...
Klodj_Meta's user avatar