Issue in creating fields Phia and Phib in CPLCFDDEMFoam and CPLSediFOAM

[gunjansauti]

Phia and Phib are defined as`nfo<< "Calculating face flux field phib\n" << endl;

    wordList phiTypes
    (
        Ub.boundaryField().size(),
        calculatedFvPatchScalarField::typeName
    );

    for (label i = 0; i < Ub.boundaryField().size(); i++)
    {
        if (isType<fixedValueFvPatchVectorField>(Ub.boundaryField()[i]))
        {
            phiTypes[i] = fixedValueFvPatchScalarField::typeName;
        }
    }

    phibPtr = new surfaceScalarField
    (
        IOobject
        (
            "phib",
            runTime.timeName(),
            mesh,
            IOobject::NO_READ,
            IOobject::NO_WRITE
        ),
        fvc::interpolate(Ub) & mesh.Sf(),
        phiTypes
    );`

Now, even if I add the CPLReceiveMD patch in this Ua and Ub directory, since it's not included in the boundary dict, while decomposing the case, it is not found in the 0 dict of the processors which finally gives an error : "Could not find patch ID "CPLReceiveMD". Aborting."
How to add the CPLReceiveMD patch in the boundary directory? And which boundaries does it apply to while running a coupled simulation?