How to perform Data Collection on single SFC with QTY = 1 with material lot size 1?

Question

Dear experts,
We are working with SFC qty>1 on a relaxed routing. At a given operation we want to collect the data on single quantity; i.e. SFC qty on that operation, where the collection will happen, will be 1.The corresponding material lot size is for ex 10. The operator must be able to collect data on SFC with qty=1 multiple times until the quantities will be consumed. He must be also able to collect other values on the remaining quantities on the same operation with the same DC group or other DC groups. How many times the data must be collected is dependent on the shop order build quantity. The data may be collected several time but not more than the build qty. In other words some specific data will be collected on a qty of a product while others will be collected against remaining quantity. The data collection must be also done in a serialized manner.
Here's what we have set up so far:
1) 3 DC groups, each DC group has 3 data fields.
2) Each data field has the following restrictions:  Required Data Entries = 0 and Optional Data Entries = 1
3) All DC groups are attached on the same combination of operation\material\routing
4) we are using relaxed routing
Process description:
The operator must be able to collect any data field on single product. For that he will enter the operation where the data collect are attached, he will enter the SFC with qty=1 then he will run the data collection after selecting the appropriate DC Group and entering the needed information. The operator will complete the SFC with qty=1.
The operator will pick the next product, select the same SFC and enter qty 1 and collect other value against this product.
Problem is:
Once the first collection is done on a given SFC with entered qty=1, the system is not allowing the operator to do further collects on the same SFC with qty=1 or any other quantity. He cannot select any DC group from the DC group list. We tried also with the table selection menu on the DC Group list but nothing can be selected.
So we tried to play around with the DC group definitions as follows:
A) we set Required Data Entries = 0 and Optional Data Entries = 10. Still the operator was not able to select any DC group after collecting data the first time. We tried to reopen the pod and list again. But we get the same blocking behavior.
B) we set Required Data Entries = 10 and Optional Data Entries = 1. The operator was able to select the DC group after collecting data the first time. BUT operator must enter the data fields 10 times on one SFC quantity, which is not what we want. Besides again he cannot collect other information on remaining quantities on the same operation.
C) There's an option to serialize the SFC before reaching the operation where the collection is happening, then merging ofter complete. Automation is needed here; hence customization. We are highly avoiding customization now, since we expect the data collect to work well on single quantities even when the main SFC has qty>1
Questions:
1) Are we missing any kind of further configuration\setup?
2) Or the current system design does not allow collecting data on single quantities of an SFC which main quantity is greater than 1?
3) Looking at this link Approaches to Collection of Data - SAP Manufacturing Execution (SAP ME) - SAP Library, there's nothing mentioned about same SFC number with multiple quantities!!!
We are using SAP ME 15.0.3.0.
Thanks in advance for your help
Ali

Answer 1

Ali
to collect data for the same SFC multiple times, your system rule "Allow Multiple Data Collection" needs to be set to true for the site.
Stuart