It is common that we have significantly contributed to writing general reports (e.g. WHO reports) that are expected to result in several papers afterwards. This has especially been the case during the COVID-19 pandemic.
Afterwards, there are two scenarios:
1) You continue to contribute significantly to all the papers derived from the primary report and write the better part of them.
2) You stop contributing after the report is delivered and another team writes the papers.
What would you do if you get a message from the affiliated organisation (that claims the ownership of the main data or hired you during the report development) informing you that you are not the first author of the papers in each of these cases? Please feel free to expand and build upon the discussion.
P.S: To be clear, I am NOT talking about a thesis as the primary report.