This field sits on the General Journal Template and controls how strictly Business Central checks that a journal batch balances before it can be posted.

Informally, this Boolean is commonly referred to as “Force Document Number”.

What it Does

Every general journal must balance by Posting Date at minimum, meaning total debits must equal total credits for each date. When Force Doc. Balance is enabled (this is the default), the system adds two further conditions on top of the date: the journal must also balance separately by Document Type and by Document No. In other words, all lines that share the same Document No. and Document Type must net to zero among themselves, not just the batch as a whole.

Why it matters

It supports Audit Requirements and the Find Entries / Reverse Transaction Functionality that relies on documents being self-balanced.

Worked Example

Will try to explain this using Multiple scenarios.

Scenario – 1

I have Disable the Boolean on Template.

Posting Date will be same and different Document Number and Type. 

Means it will allow us to Post.

Scenario – 2

Same Scenario as one above. Just changing the Posting Date.

So, the Error is coming that lines are Out of Balance because of Date.

Scenario – 3

Now Enabling the Boolean of Force Document Balance.

Now Posting Date and Document Number will be Same, but Document Type will be Different.

So, the Error comes again because it is considering Document Type.

Scenario – 4

Now Posting Date and Document Type will be Same, but Document Number will be Different.

So, the Error comes again because it is considering Document Number.

Scenario – 5

Now Posting Date, Document Type and Document No. will be Same in both Lines.

So, the system is allowing to Post.