You can only enter amounts up to & &

What causes this issue?

The amount of the invoice is too high. There can be one of two reasons
for this:
The amount you entered in the <LS>Amount</> field on the supplier screen
was too high.
The sum of the debit and credit postings exceeds the permitted upper
limit.
In the Customizing system of Invoice Verification, you are allocated to
tolerance group &V3&. An upper limit of &V2(C)& &V1& has been set for
this tolerance group in company code &V4&.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Check what you have entered and make any necessary corrections. If your
entry is correct, you have one of the following possibilities:
You pass the invoice onto another user who is authorized to post a
higher amount.
Your system administrator changes the setting in the Customizing system.
He/she increases the upper limits for posting procedures for tolerance
group &V3& in company code &V4&.
IF &DEVICE& = 'SCREEN'
<DS:TRAN.OMRB>Proceed</>
ENDIF
He/she allocates you to a tolerance group with authorization to post a
higher amount.
IF &DEVICE& = 'SCREEN'
<DS:TRAN.OMRC>Proceed</>
ENDIF

Error message extract from SAP system. Copyright SAP SE.