Field help (UMRNUMSIH) 

This field, subject to an entry transaction, is displayed only if the activity code SDD - SDD management is active and if the company parameter SDDMGT - SDD management (chapter TC, group SDD) is set to "Yes".

Upon direct invoice creation, it can be entered and is mandatory only if the payment term is an SDD-type one. It is used to enter the reference of the SDD mandate.
When a "Validated" mandate has been identified as "Main mandate" for the [Company ; Pay-by BP] pair, the reference of this mandate is loaded by default but can be modified. Only a mandate reference whose status is "Validated" can be entered.
If the company and/or the pay-by BP is modified, the mandate reference is reinitialized accordingly.

When the invoice is created through an automatic creation process, this field is not initialized if no "Validated" main mandate has been defined for the company/pay-by BP combination. However, In this case, the invoice is created, but it can not be validated until a mandate reference is entered.

During a credit memo entry by invoice picking, the mandate reference is populated by the reference of the mandate on the first selected invoice.