Invoice & Accounting Document Number

Question

Dear Experts,
We are facing number range problem. When we are saveing an invoice then Invoice number and accounting document number showing different. It should come same number. Can you pls advice why this is happening and how I can resolve this issue.
Thanks in advance for your kind support.
Best Regards.
Ripon Kumar Paul

Answer 1

Dear Ripon,
Please check the below which will help you achieve same document number:
SAP gives you customizing options to make both document numbers the same. The solution lies in the number range assignment of the MM and FI document. You need to configure the MM document number assignment as internal and external for the FI documents. (FI documents are set up with external-assigned numbering, while the MM document has internal, or system-generated, numbering.) In this case, the MM document number is passed on to the FI document, which means that the number of the FI document is identical to the MM document.
Because the document number assignment in MM is not company code-specific, in contrast to the FI document, you need to take the following points into consideration before using external document number assignments for FI documents. They have the following effects on your system:
Continuous number assignments for FI documents are not guaranteed, especially if you have more than one company code.
The document number ranges in MM and FI have to be the same for all company codes.
In Release 4.6C, you need to use internal number assignments for revaluation documents, invoice reduction documents, Evaluated Receipt Settlement (ERS) postings, or reversal documents. There are no restrictions as of SAP Enterprise 4.70.
Use a different number range assignment for FI invoice posting (FB60), because FI invoice postings usually use internal number range assignments and the postings originate in FI, not MM.
If you use document parking and the number range intervals are fiscal year-dependent, you cannot change the posting date of the document if the fiscal year is different to that determined for the previous posting date. In this case you have to delete the document and re-enter it. There are no restrictions for fiscal year-independent number ranges.
What do you do if you have already posted thousands of invoices in your system and the numbers are already different? In this case, you need to find unused number range intervals in MM and FI. Since most companies do not change the SAP standard delivered number ranges during the original implementation, number range interval 52 is usually available in MM and FI.
Now let's look at the detailed customizing steps. With the following customizing steps, you can align the MM and FI document numbers going forward only. No fix is available for invoices already posted in your system, since SAP does not allow the change of document numbers.
Step 1. Maintain FI document number range. Use transaction OMR4 and go to Number range for document types in FI. Select the company code for which you want to create the new number range interval and click on the change interval button. Insert a new document number range by clicking on the insert interval button on top of the screen. In this example, I created number range interval 52 with the document numbers 5200000000 u2013 5299999999. Don't forget to set the external number range check box (Ext).
Step 2. Assign FI number range to FI document types. The second step is to assign the number range created in step 1 to the FI document type for invoices. Again use transaction OMR4 and go to Document type. Double-click on the document type, which you are using for LIV invoices. In my example, I used the SAP standard document type RE. In the number range field, assign the new number range interval 52.
Thanks!!!
Murlidhar Khatri