2367494 - Error 'cannot insert NULL or update to NULL exception' when saving data

When end use saves data for a supply planning related key figure in planning view, the below errors can be found in Excel front end and index sever log:

•  Excel front end

             An unexpected error occurred. To avoid losing your keyfigure changes, save your planning view in a local folder, re-login and try Save again.

• Index sever log

            Cannot insert NULL or update to NULL exception: cannot insert NULL or update to NULL: TrexUpdate failed on table 'SAPSOPG:SOPDD_TIMESERIES_XXX' with error: constraint NOT NULL violation;checkIntColumn(): found NULL on pos 0, column 'TSCHANGEIDFR', table 'SAPSOPG:SOPDD_TIMESERIES_XXX', rc=56, errorCode=UNEXPECTED_SAVE_ERROR.

• SAP Supply Chain Management (SCM)
• SAP Sales and Operations Planning (SCM-SOP)

save data, supply planning, unexpected error, change history, NULL exception, TSCHANGEIDFR, UNEXPECTED_SAVE_ERROR, SOP3.0 , KBA , SCM-SOP , Sales & Operations Planning , Problem