Magnetism and <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mi>T</mml:mi><mml:mtext>−</mml:mtext><mml:mi>x</mml:mi></mml:mrow></mml:math> phase diagrams of Na- and Ag-substituted <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msub><mml:mi mathvariant="normal">EuCd</mml:mi><mml:mn>2</mml:mn></mml:msub><mml:msub><mml:mi mathvariant="normal">As</mml:mi><mml:mn>2</mml:mn></mml:msub></mml:math>

$\mathrm{Eu}{\mathrm{Cd}}_{2}{\mathrm{As}}_{2}$ is an antiferromagnetic semimetal that can host nontrivial topological properties, depending upon its magnetic state and excitations. Here, we report the synthesis characterization of $\mathrm{Eu}{({\mathrm{Cd}}_{1\ensuremath{-}x}{\mathrm{Ag}}_{x})}_{2}{\mathrm{As}}_{2}$ ${\mathrm{Eu}}_{1\ensuremath{-}y}{\mathrm{Na}}_{y}{\mathrm{Cd}}_{2}{\mathrm{As}}_{2}$, study evolution nature order with doping. Temperature-substitution phase diagrams are constructed from electrical resistance susceptibility data. We observe a splitting transition into two different transitions, gradual increase in one temperatures Ag Na substitution. The other remains more or less independent further show net ferromagnetic moment stabilized by both doping this be explained considering changes band filling due to substitution as suggested density functional theory (DFT) calculations. thus chemical subsequent could pathway tune ground stabilize $\mathrm{Eu}{\mathrm{Cd}}_{2}{\mathrm{As}}_{2}$.