The new wiki link for this data flow is here:
Reloading data when Keyfigures missing in BW_QRY_MVFICX01_0021
Please update the new doc there and no longer here.
The query - BW_QRY_MVFICX01_0021 is ued by users to deliver information to the auditors and it is very critical to solve any issues related to the query escepcially during closing period.

When we have any issues like missing keyfigures due to incorrect DTP filters, the affected infoproviders are to be reloaded.
Refer ticket - https://sbs-support.solvay.com/a/tickets/5068132
We had missing data for Nov and Dec 2020 due to an incorrect DTP filter sent to WBP:
DTP - DTP: APFIAA04(Solvay) -> ABFIAA04 - Delta (DTP_B1FNYSNDTMCV57WV0IJ330CZX)
Since the DTP filters are incorrect between propogatin layer and bussiness layer, the business layer and reporting layer has to be dropped and reloaded for the impacted data.
For example if the DTP was loaded with worng filters since November 2020 all the data greater than October 2020 has to be reloaded, we reload October 2020 data as well to make sure there are no missing data.
Below are steps made for ticket - 5068132 , following steps can be taken as a reference to solve the issue
Step - 1 : Delete impacted data from Bussiness layer, ABFIAA04 (where FISCPER is greater than or equal to 010.2020)

Step 2 : Verify if the impacted data is deleted in Bussiness layer
Step 3 : Reload the impacted data from Propogation layer to Bussiness layer using full DTP and filters should match with the selections used for deletion of data in Bussiness layer:

Step 4 - Activate the request reloaded in Step -3
Step 5 - Delete the impacted data from Reporting layer:

Step 6 - Verify if the impacted data is deleted from reporting layer.
Step 7 - run the Delta DTP from Bussiness layer to Reporting layer to load the request from Step 3 (As we use delta DTP there is no need to do an init)
Step 8 - Verify if the values appear in the report for the impacted data and inform the users
Step 9 - The DTP settings are to be corrected in WBP directly and then from WBD and moved to WBP to avoid such issues in the future