"Job # vacancy date data already exists, please change the value and try again" - This error comes when the data is in intermediate table. We need to delete the data in such cases.
When this happens open the respective intermediate table and copy the entire data into excel sheet as a backup.
Then delete all records from the table.
The following are the names of the intermediate table -
[2_2374_Open Job Assignment] - STAA
[2_2287_Open Job Assignment] - STAC
These can be found in the following db -
[Kezava_DM_SubwaysWMS_Prod_WMS-STAA]
[Kezava_DM_SubwaysWMS_Prod_WMS-STAC]