When saving a record in CRM, the user receives an error: The data you were trying to access could not be found. It may be due to another user deleting the data or a system error. If you know the data is not deleted but cannot access it, please look at our support page.
A Salesforce Id referenced in the object or related objects may not exist.
Verify all Ids referenced on the object or related objects (if there are any triggers that modify those objects) are valid and not deleted.
If a user receives the Error while saving a Territory Specific Field (TSF) record, look into the TSF and Account to make sure all Salesforce Ids are valid. A cause can be that the Primary_Parent_vod__c is deleted and needs to be nulled.
CRM Help Documentation: N/A