Different p-values in wilcox rank sum test and enrichment analysis

I’m performing a metabolomic analysis with Metaboanalyst 6.0, and I have noticed that the p-values for the metabolites in Wilcox rank sum test and Enrichment analysis are different for each metabolite. Could anyone please explain it? Does it have something to do with the FDR?

Not sure if I understand your question - Wilcox rank sum test and Enrichment analysis are different methods - they are not comparable. If this is not what you mean, please provide specifics following our post guideline