ABAP-SD-error caused by "Order combination mark" of customer master data

When creating a delivery order with vl01n (the customer's two orders are combined with one delivery order), an error message is displayed, indicating that the combination is incorrect, judging from the symptom, what conditions should be met when the two orders are merged. People familiar with the SD configuration know that this is related to the shipment replication control. You can also find the corresponding configuration based on the current error message.

The specific path is as follows:

Locate the configuration items for corresponding replication Control Based on the wrong delivery order type and source order type, such:
051 is a combined requirement check routine.

Find the code of this routine, set a breakpoint, exit and re-run the business, the system enters the debugging status, and stops at the breakpoint;

According to the code above, if likp-kzazu is empty, the order number must be consistent; otherwise, an error is returned. Obviously, kzazu is a flag indicating whether to allow
Different sales orders are combined to open a delivery order. Based on this judgment, find the order header data.

There is indeed an order combination mark, not checked. Most of the Order header data is copied from the customer's master data.
Follow this idea to find the customer master data:

There is an order combination not checked on the sending page.

After finding the cause, the solution is simple. The customer master data is preferred to be correct, and the current order must be checked separately.