Data Migration FI historical balance reverse JE

[brian_householder2]

I have loaded in one month of historical balance for a specific company code. The document number is an internal SAP document number DHG0000090. However I cannot find the document number so I can reverse in the following period and load the next month. Is there an updated approach I should be using?

[brian_householder2]

If I look at the help.sap.com documentation (link https://help.sap.com/viewer/cc9ecc5f5f6b400a98d10e930324f7ad/2005.500/en-US/3d124205199a4a33b787907d...

It states "Balance Carry Forward (BCF): Post the accumulated balance at the end of each period and reverse the balance of the previous period."

This is the method I am trying to use, but how to do the reverse? does it automatically reverse when I do the next month?