Usually, when an article is submitted as a summary of a meeting, complete information is not needed. Researchers usually only present their preliminary findings and analysis at meetings, and keep other more specific and important data for publication in academic journals. Similarly, when giving a speech at the conference, the report only revealed the key findings of the research. Therefore, researchers can convert previously published conference papers with at least 30-40% extra data into complete journal papers.

If your article is published before the meeting or accepted by the journal, you can show your published works at the meeting. However, in this case, as a moral convention, you must quote the published article and provide a link or DOI (if you can access it online).

If you want to withdraw the abstract from the meeting, you'd better inform the meeting organizer about the publication. If the meeting organizer mentions that they don't want the summary to be part of the meeting minutes, then you can only withdraw the summary, otherwise you can keep the summary and quote it appropriately.