I know there are a lot of topics about lock issues, but I couldn't find one which relates to my case. I have field DaysInTarget__c, which is updated daily when an opportunity is in Target stage. Also I have the same fields for other stages and my flow works the same for them. I get this error: Info Error Occurred:
The flow tried to update these records: null. This error occurred: UNABLE_TO_LOCK_ROW: unable to obtain exclusive access to this record or 10 records: 0013X00002nNrI7QAK,0013X00003hk7DsQAI,0013X00003lM4oNQAS,0013X00003j9paGQAQ,0013X00003lLaVFQA0,0013X00003kxITtQAM,0013X00003j805dQAA,0013X00002nNrLkQAK,0013X00002xVgDoQAK,0013X00003kxKOnQAM. You can look up ExceptionCode values in the SOAP API Developer Guid.
These ids are ids of Accounts. I read that update of Opportunity may cause a lock of Account, but it doesn't seem to be obvious for me. What's the real reason of issue and how can I сщккусе this? My flow :