combining two snmp mibs ( Entity mib and Cisco Entity sensor mib) to collect the data from the device

[nmccontent]

.1.3.6.1.2.1.47.1.1.1.1.7 we are assigning to sensor name 

.1.3.6.1.4.1.9.9.91.1.1.1.1.5 we are assigning to sensor status

question:

 we are getting NO_SUCH_INSTANCE from the device while collecting the data by combining above MIB's.

for example:

.1.3.6.1.2.1.47.1.1.1.1.7.243 here243 is the suffix , but it is showing the suffix 243 is not found while accessing the data from the device.

so the point is will there be any chances of missing the  suffix 243 in .1.3.6.1.4.1.9.9.91.1.1.1.1.5.243?

or always all the suffixes will be present in both MIB.?