See the video What to do if traders do not provide information?
In general you shall push your treatment partners to provide data (and repeat this request); other options are:
* (especially at the beginning) you may use best estimations for technologies used
Hint: use all the time the same wording for this estimation, e.g. 'no info acceptor - est. technology', you may sort the list of final fractions to find this 'open acceptors' in a group & do actions to improve data
* in some cases (e.g. in countries with wide use of WF-RepTool or where e.g. also authorities do insist in reporting of each step of treatment) treatment partners changed their partners to those ones giving information