PurposeThe current study seeks to investigate how supply chain quality management (SCQM) and supply chain agility (SCA) and innovation (SCI) have an impact on supply chain performance (SCP) and how SCQM affects SCP through the mediating role of SCA and SCI capabilities.Design/methodology/approachIn line with the research objective, a quantitative model was applied, and a multi-item survey questionnaire was developed to collect primary data. A random sample of 284 manufacturing firms belonging to different industries was used. The measurement model was assessed for validity and reliability, and satisfactory levels of these tests were demonstrated. Research hypotheses were examined using structural equation modeling (SEM).FindingsThe results of the current study have significant implications in regard to the further improvement of SCP through SCQM. The study also found that SCQM plays a key role across the entire SC network in facilitating and developing SCA and SCI capabilities. The remarkable findings of the current study revealed the indirect effect of SCQM on SCP through SCA and SCI. These results broaden the work of previous studies which identified the positive effects of SCQM on performance by providing meaningful insights into SCQM's role in promoting SCA and SCI capabilities, which, in turn, further improves SCP.Originality/valueThis study addresses a gap in the literature concerning the effect of SCQM on SCP. In addition, it is the first study, to the best of the researchers' knowledge, to explore the role of two major SC capabilities, namely, SCA and SCI on the SCQM–SCP relationship. Moreover, the present study addresses a questionable issue in the literature regarding practices that conceptualize SCQM. Several studies confuse SCQM practices with internal quality management (QM) practices. This study defines SCQM as consisting of collaborative QM practices with external SC members and proposes five related practices for measuring SCQM.