I am using the RDP python package's `get_bond_analytics` function to get bond cashflow data like so:
```
import refinitiv.dataplatform as rdp
from refinitiv.dataplatform.content.ipa import bond
df = rdp.get_bond_analytics(
universe=[<List of RICS codes>],
fields=[
'Isin',
'RIC',
'Cusip',
'Sedol',
'Ticker',
'CashFlowDatesArray',
'CashFlowInterestPercentsArray',
'CashFlowCapitalAmountsInDealCcyArray',
'CashFlowAnnualRatesPercentArray',
'CashFlowTotalPercentsArray',
],
calculation_params=bond.CalculationParams(market_data_date="2000-01-01"),
)
```
However, I cannot get data for about 700 bonds in our universe. Please can you help me understand why there is no data?
Example RIC codes with missing data:
'AU9YT=RR'
'225401BB3=2M'
'61772BAC7=1M'
'GR15YT=RR'
'AT7YT=RR'
'225401AY4=2M'
'55608JBF4=2M'
'06406RBR7=2M'
'XS007437161=2M'
'FR001400I3N=2M'